Search found 220 matches

by Bill DeFelice
Sat Feb 24, 2018 4:28 pm
Forum: FCC Discussion
Topic: Management ignored me when I suggested LPFM....
Replies: 8
Views: 72

Re: Management ignored me when I suggested LPFM....

I've see cases where a commercial FM exciter on a test bench into a dummy load could generate a field close, if not exceeding, Part 15 legal limits. Some time ago I did a quick and dirty test with an exciter I had in the shop and with its output turned down as far as it would allow the Potomac 71 sh...
by Bill DeFelice
Thu Feb 15, 2018 7:54 pm
Forum: On-Air Studios
Topic: Where to find used equipment?
Replies: 7
Views: 189

Re: Where to find used equipment?

My go-to for used equipment is Steve Scarborough at Bay Country Broadcast in Baltimore. I have been dealing with Steve for most of 20 years. I recently bought a Symetrix 528E from him that shows no sign of use and has definitely never been mounted in a rack. There are also a couple of broadcast equ...
by Bill DeFelice
Thu Jan 25, 2018 6:46 pm
Forum: AM Radio
Topic: Low Power AM ATU question....
Replies: 9
Views: 1091

Re: Low Power AM ATU question....

waveguide wrote:
Wed Jan 24, 2018 2:21 pm
Thanks. Ok, so I have managed to tune the base loaded antenna
Did you go with the MFJ tuner or with something else?
by Bill DeFelice
Tue Jan 16, 2018 5:28 pm
Forum: Radio Automation Systems
Topic: Arrakis Automation
Replies: 6
Views: 319

Re: Arrakis Automation

Well, the first con is the name Arrakis. I had used Digilink years ago and, personally, I think you can do much better - even with a low-cost solution such as StationPlaylist Pro. I don't know whatever became of Prophet's Player101 but that was a system I had considered more than once but for variou...
by Bill DeFelice
Sun Dec 31, 2017 1:16 pm
Forum: Ask the Engineers
Topic: Convert to LEDs, or leave 110v?
Replies: 10
Views: 654

Re: Convert to LEDs, or leave 110v?

I used strips of 12v LEDs for under console furniture lighting for when you need to work inside a lower cabinet. When I pick up some more I plan on retrofitting an knockoff RCA on the air sign to operate on low voltage.
by Bill DeFelice
Sun Dec 31, 2017 1:11 pm
Forum: FM Radio
Topic: Wanted reliable monitor amp
Replies: 11
Views: 488

Re: Wanted reliable monitor amp

We've had good luck with the ART SLA-1 amps in our remaining analog studios. About $200 from BSW. For all new AOIP studios, we are using powered monitors, KRK or Genelec. In my opinion, powered monitors are they way to go. I concur on the ART SLA-1 amp as I have two for my personal studios. Have ha...
by Bill DeFelice
Sun Dec 31, 2017 1:07 pm
Forum: Internet Streaming
Topic: Getting Through Windows Firewall
Replies: 4
Views: 161

Re: Getting Through Windows Firewall

@Dale: Make sure you have an appropriate rule set in the router if NAT is in place. I had to play around with this when setting up a private confidence monitor for a station PD and engineer to share.
by Bill DeFelice
Fri Dec 01, 2017 3:40 pm
Forum: AM Radio
Topic: Low Power AM ATU question....
Replies: 9
Views: 1091

Re: Low Power AM ATU question....

Might be better off trying to locate a used LPB TCU-20/ATU-30 or a Radio Systems CP-15 carrier current antenna coupler, which have been used with low power free radiate AM systems for campus-limited broadcasting.
by Bill DeFelice
Wed Sep 13, 2017 3:43 pm
Forum: Radio Studio Engineering
Topic: Arrakis Console issue
Replies: 7
Views: 759

Re: Arrakis Console issue

I was buying the SSM2013 VCAs for the 1200-15 console I tended to. Keep in mind that the other channel's VCA would become wonky when the other chip took a dive, so it might prove beneficial to replace both channels if your board is indeed set up with two VCAs per channel.
by Bill DeFelice
Thu Aug 31, 2017 10:03 am
Forum: Broadcast Engineering News
Topic: Tom Osenkowsky passes away
Replies: 3
Views: 702

Re: Tom Osenkowsky passes away

I was sad to hear of Tom's passing. I had corresponded with him only a week or two ago and while he sounded like he was in good spirits it also sounded like he had come to terms with his own mortality.

edited for clarity
by Bill DeFelice
Mon Aug 28, 2017 9:57 am
Forum: AM Radio
Topic: Look what took my 50kw off the air
Replies: 6
Views: 1387

Re: Look what took my 50kw off the air

Years ago I had an MW-1 at a two-tower direction popping itself off the air intermittently. When I got to the site I noticed an entire row of plastic cable ties failed and a long length of the coax for the STL dish was flapping in the breeze. As the wire went further away from the tower leg the Harr...
by Bill DeFelice
Wed Aug 23, 2017 4:57 am
Forum: AM Radio
Topic: Low resource SDR Software
Replies: 18
Views: 1843

Re: Low resource SDR Software

w9wi wrote:
Sun Aug 20, 2017 12:33 pm
GQRX is supposed to work with either RSP unit & OS/X. I don't have a Mac available so haven't tried it.
Looks like it works until I upgrade past MacOS 10.11. I just need to pick up a compatible SDR now.
by Bill DeFelice
Sun Aug 20, 2017 11:00 am
Forum: AM Radio
Topic: Low resource SDR Software
Replies: 18
Views: 1843

Re: Low resource SDR Software

I'd personally like to find one that has software for both Windows and Mac platforms.
by Bill DeFelice
Sun Aug 20, 2017 10:59 am
Forum: AM Radio
Topic: aphex compellor Settings for AM transmission
Replies: 1
Views: 398

Re: aphex compellor Settings for AM transmission

I assume your Compellor doesn't have the "A" designation after the model number, right? Also, I have mine feeding a downstream audio processor so suggested settings may be different depending on what the follow processor(s) are set for. I have the process balance at about 11 o'clock with about 8-10 ...
by Bill DeFelice
Sun Aug 13, 2017 11:54 am
Forum: Everything else
Topic: Goldmine Imaging Library
Replies: 0
Views: 329

Goldmine Imaging Library

I'm looking for any and all Goldmine Imaging CDs I can get my hands on. I'm using them as templates to teach high school students how to do radio imaging and aren't being used for commercial use. I was lucky enough to have a station donate a few but I missed it when they threw out their entire CD li...